Bloody Weaponry (Many)
First off, I'm not a marshal
Second off... as for the question of range, I think it's perfectly appropriate to have a monster (like a manticore) that fires quills, but I would rather have the physrep be something defined (like a quill-shaped throwing weapon) over using a bow physrep and ribboned packets. Just like "Natural armor", it should say somewhere on the card "reps must be carried"
There are some situations where body weaponry has been used as a skill representing a weapon "bolted in"... attached in such a way it can't be disarmed, but that's been more common with undead in my experience. (and it hasn't ever explained why the object suddenly can't be shattered)
Now, as for GOLEMS, which is so clearly the subtext of your post
I think an arm or shoulder-mounted crossbow would be appropriate on those kinds of monsters, even if PC's get to play them.
Ammo and physrep sizing should be as appropriate for the archery type in those cases, and the "draw action" with packets should be similarly unaffected.
Players who store into a golem can still use a bow, but if you were an acher with celestial formal, you would most certainly install some suppressing fire before your first test drive.
With thrown weapons, I could see them being "ammo" as well. A golem that can fire a certain amount of spines/ claws/ blades/ shuriken/ annoying roommates per day "from within" as it were.
Third off, I am a rules gnome, not a lawyer, so while this may all make sense to me, and have a logical structure to it.... it may be the "gnomeness" that makes me think that way about my own ideas, who gnows?
And that, Nick Bond, is what you call a disclaimer sandwich.
Always helpful, except in emergencies,
-Gideon